/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDActiveView.h
Execute the specified function in nested parallel for loops, on all items for each active range (parallel range, parallel items). Set MinParallelSize to run sequential on the smaller ranges.
void ParallelFor ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void(TItemsType &, int32)> Function, bool bForceSingleThreadedRange, int32 MinParallelSize ) const